Oil burner



F. HARDINGI-II.

OIL BURNER.

APSLICMTION flLED MAY I6, 1921.

Patented May 30, 1922.

FRANKLIN nannrnsn,

n a as;

GE CH 133.53. GU, IlLLIIlGlIS.

GIL BURN Be it known that I, FRANKLIN Hannmon, a citizen'of' the United States, and. resident of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in vOil Burners, of which the following is a full, clear. concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in oil burners and is particularly concerns: with improvements in that type of oil burner comprising an outwardly flaring rotary atom.- izing nozzle to which the fuel to be burned is supplied by a suitable standpipe in such manner that it will spread over the inner surface of the atomizing nozzle in a thin film and be thrown from the edge of the nozzle in a fine spra 'iitable means being provided for vmixing; the oil spray thus formed with sullicient air to form a combustible mixture."

Experience has demonstrated that the inner surface of the atoniizing nozzles of oil burners of the type described will, after continned use, become more or less coated with a deposit of carbonized oil and impurities present in the fuel being burned. To secure the. best results, it is necessary to remove this coatingfroni time to time, and one oi the objects at my present invention is to provide a hanger of such construction as to permit the inner surface of the atomizing nbzzle to be easily and quickly cleaned of this deosit. p Another object of my invention is to provide a novel means for cleaning the inner surfac? of the atomizing nozzle.

Further objects will appear as this description progresses, reference being had to the accompanying drawings in. Wl1l('l1- Figure 1 is a central longitudinal section through the head of an oil burnerinvolving my invention, portions of the furnace being shown in section, and.

Figure 2 is a horizontal transverse section through my improved burner taken on line 22 of Figure l.

In both of the views, similar characters will be used for referring to similar parts.

In my co-pending application, Serial No. 380,794 filed lllay 12, 1920, I have illustrated and described an oil burner comprising a cup 5 into which the fuel oil is discharged through the standpipe '8 and on the upper Specification of Letters Patent.

'11: my co-pending application referred Patented slay "19225,.

i end of which is mounted an outwardly ing atomizing nozzle I from the knife edge 8 of which the oil is discharged in a finely divided or atomized condition. The cup 5 is mounted upona rotary hollow shaft 9 aild means, not shown, are provided for rotating this shaft, of this atomizer and the means for rotating the nozzle are fully and clearly described and further description thereoiappears be unnecessary.

The particular construction. of the pipe and the cap or hell 10, over which this oil is discharged from the standpipe from which it is discharged into the centr'?- ugal separator comprising the cup 5 ar riescribes and claimed in my co-pending i, plication, Serial No. 470,211, filed Maylti, 1922. Since these details of construction do not form any part of my present invention, further description thereof is omitted.

A cap comprising top and bottom sections 11 and i2 is supported upon the upper end of the standpipe 6.. the upper end of the standpipe being reduced in cross-section to form a shoulder 13 upon which the lower end of he sleeve ll. forming a part or the bottom section 12 of the cap, rests. The lower section comprises an upwardly extending outwardly flaring lug or projection 15 which provided with a curved channel 16 for receiving one end of the cleaning device 17 which "will be referred to later on. v

The extreme upper end of the standpipe 6 is provided with a flattened face 18. A Washer 19 surrounds the upper end of the standpipe and has an opening th erethrough which ccnforresto the flattened face 18 of the standpipe 30 so as trrlock the washer 19 against rotation. The washer 19 is provided with two arcuate slots 20 and 21 for I'QCQlVlHfZ the shank of a screw 2. the lower end of which is received in a suitable screwthreadedopening 23 formed inthe wall of the lower section 12 of the cap. By means of this slot and screw connection between the lower section 12 of the cap and the washer 19, the cap can be adjusted relatively to the standpipe so as to make the channel 16 accessible from practically any desired point,

at high speed. The construction thus mailing it easy for the operator to in burner through the channel section 12 of the cap cleaner' so as to bring the curved portion 25 ing flange for co-acting with the-upper edge of the section 1'2 to lock the section 1 in place. One side of the section 11 is cut away. to provide a recess for the outwardly flaring projection 15. as shown in Figure 1. The cleaning device 1? is preferably "formed oi a heavy wire or light rod which is prei'erabl square in cross-section and the inner end of which is curved. as shown at 25 to provide a curved surface for contacting with the inner surface of the atomizing nozzle: the outer end of the wire may be curve as shown at 26 to provide a suitable handle. In cleaning the atomizing nozzle. the sup- )ly of oil to the nozzle is first shut oil. the burner is then caused to rotate and the operator inserts the cleaningdevice into the 16 in the lower and then moves the into contact with. all portionsot the inner surface of the burner. The cleaning device acts as a scraper to remove the deposit of carbon and impurities from the burner thus leaving it in condition for further opera tion. During or the other of the channel 1 upon the direction of rotation of the atomizing nozzle will act as a stop to hold the cleaning device from being carried along by the atomizing nozzle.

ll'hile l have described the details of construction of the preferred embodiment of my invention. it is to be clearly understood that my invention is not limited to these details of construction. but is capable of other adaptations and n'iodifications within the scope of the appended claims.

Having thus described my what I claimv is;

1. An oil burner comprising an outwardly flaring rotary atomizing nozzle, :1 standpipc projecting upwardly into said atomizing nozzle for supplying oil thereto and a heat insulating cap supported by said standpipe and projecting downwardly into said nozzle.

16. depending invent ion,

thecleaning process. one side a slot formed in one side said cap having engaging thereof for receiving a device for the inner surface of said nozzle.

:2. An oil burner comprising an flaring rotary atomizing nozzle. a standpipe projecting upwardly into said atomizoutwardly ing nozzle for supplying oil thereto and a cap supported by said standpipe and projecting: downwardly into said nozzle. said cap having an opening formed in one side thereoi for receiving a the inner surface of said nozzle.

3. An oil. burner comprising an outwardly flaring rotary atomizing nozzle. a standpipe projecting upwardly into said nozzle for supplying oil thereto. and means secured to the upper end of said'standpipe for holding a cleaning device in engagement with the inner surface of said atomizing nozzle.

4. An oil pipe comprising an outwardly flaring rotary atomizing nozzle and means supported adjacent the discharge end of said nozzle for holding a cleaning device in engagement with the inner surface "of sai atoniizing nozzle and from movement in the direction of rotation of said nozzle.

, 5. An oil pipe comprising a izing nozzle and means supported adjacentthe discharge end of said nozzle for holding a cleaning device in engagement with the surface of said atomizing nozzle and from movement in the direction of rotation 0t said nozzle.

6. An oil. pipe comprising-a rotary atomizing nozzle and means supported in axial alignment with said nozzle for holding a cleaning device in engagement with the surface of said atomizing nozzle and from movement in the, direction of rotation of said nozzle. I

In witness whereof. I hereunto subscribe my name this 11th day of May. 1921.

' 'FRAXKLIX HARDINGE.

\Yitnesses ALBIX C. AnLnERo. EMILE J. BotReEoIs.

device tor. engaging 1 rotary atom- 

